Assessment of the combined response of heavy metals and human pathogens to different additives during composting of black soldier fly manure
文献类型： 外文期刊
作者： Wang, Nanyi 1 ; He, Yong 1 ; Zhang, Xiaobing 3 ; Wang, Ying 3 ; Peng, Hua 2 ; Zhang, Jiachao 1 ; Zhao, Xichen 2 ; Chen, Anwei 1 ; Qi, Renli 6 ; Wan, Dan 2 ; Luo, Lin 1 ; He, Liuqin 2 ;
作者机构： 1.Hunan Agr Univ, Coll Environm & Ecol, Changsha 410028, Hunan, Peoples R China
2.Hunan Agr Univ area, Yuelushan Lab, Changsha 410000, Hunan, Peoples R China
3.Hunan Yirun Biotechnol Co LTD, Changsha 410133, Hunan, Peoples R China
4.Hunan Acad Agr Sci, Hunan Inst Agroenvironm & Ecol, Changsha 410125, Peoples R China
5.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410000, Hunan, Peoples R China
6.Chongqing Acad Anim Sci, Natl Ctr Technol Innovat Pigs, Chongqing 402460, Peoples R China
关键词： Composting; Black soldier fly manure; Heavy metal; Pathogen; Pollution reduction
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2025 年 493 卷
页码：
收录情况： SCI
摘要： The bioconversion of black soldier fly (BSF) is a new model of livestock manure resourcing. However, the biochemical properties of BSF manure are unstable and direct application can be harmful to crops. Therefore, the effect of additives (biochar, humic acid and tea residue) on the removal of heavy metals and pathogens from BSF compost was investigated. Biochar inhibited the availability of Zn (58.9 %) and As (51.7 %) more significantly. Humic acid and tea residue significantly reduced the availability of Zn (60.8 %) and As (42.5 %) respectively. Humic acid and tea residue inhibited the bioavailability index of heavy metals more than biochar. At the end of composting, the total number of pathogenic bacteria was reduced by 80.1-96.0 % and pathogenic fungi by 41.4-99.9 %. Humic acid and biochar are more helpful in inhibiting the growth of pathogens. The abundance of dominant pathogenic genera was reduced by additive modulation. OM, EC, and temperature were the most key factors affecting the pathogenic bacteria. OM, pH, EC, Cu, Zn, and Cr also responded significantly to the pathogenic fungi. This study promotes the efficient conversion of livestock manure via BSF and provided theoretical guidance for the removal of pollutants in compost.
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